You push the button to close the garage door.
Garage door closes to sensors and reverses.
This is almost always the result of a dirty or obstructed safety feature.
Photo eyes or safety sensors are mounted to the track on either side of the garage door about 6 inches up from the ground.
If an object person or animal blocks the beam the closing door reverses direction.
A garage door that keeps reversing when you attempt to close it with the opener might have a simple problem or a major issue that requires a service professional.
If the door closes and reverses it is traveling too far and you should decrease the travel.
While holding the sensors close together and facing each othe click the remote.
If the door reverses part way down and you are sure there is no obstruction or binding increase the closing force a small amount and try it again.
Clean and adjust the photoelectric eye which also reverses the garage door.
The garage door opener has several safety sensors photo eyes in place to prevent damage or injury should something obstruct the door as it is closing.
It goes partway down reverses direction and goes back up again.
Test the sensor eyes by connecting them to short wires directly at the motor unit.